3989278

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1721}}^1$

素因数の和:1803

約数の個数: 16

約数和(自身を含む): 6405840

約数和(自身を除く): 2416562

約数列:

[1, 2, 19, 38, 61, 122, 1159, 1721, 2318, 3442, 32699, 65398, 104981, 209962, 1994639, 3989278]

約数ペア:

[(1, 3989278), (2, 1994639), (19, 209962), (38, 104981), (61, 65398), (122, 32699), (1159, 3442), (1721, 2318)]